MALABON NATIONAL HIGH SCHOOL GRADE 7 – MATHEMATICS THIRD QUARTER- SUMMATIVE TEST # 4 Choose the letter of the correct answer: 1. We use a ____ to construct a line, ray or segment when two points are given. A. compass B. straight edge C. weighing scale D. barometer 2. What do you call a step by step process used to create accurate geometric figure? A. sketch B. outline C. drawing D. construction 3. Give the sides of a pentagon “S O L I D” A. SO, SI, SL, SD, SS C. SO, SD, OL, LI, ID B. SO, LI, DS, OL , LS D. SO, OL, LI, ID, DS 4. What is the measure of each interior angle of an equi-angular triangle? A. 50° B. 60 ° C. 70° D. 80° 5. Find the sum of the measure of the interior angles of a hexagon. A. 720° B. 900° C. 1080° D. 1260° 6. How many sides does a tri decagon have? A. 3 B. 10 C. 13 D. 20 7. Which polygon has 15 sides? A. pentadecagon B. octadecagon C. eneadecagon D. isosagon 8. How many sides are there in a polygon whose sum of the measure of all its interior angle is 360° ? A. 4 B. 5 C. 6 D. 7 9. _______ polygons are polygons having equal measurements of both its sides and interior angles. A. Random B. Regular C. Convex D. Concave 10. What is the perimeter of an isosceles triangle if one of its legs is 30cm. and its base is one-half the measure of each of its legs? A. 45cn B. 60cm C. 75cm D. 90cm 11. Find the sum of the measures of all interior angles of a polygon having 27 sides. A. 4860° B. 4680° C. 4500° D. 5220° 12. Determine the measure of an interior angle of a regular octagon A. 135 ° B. 45° C. 145° D. 35° 13. Hexagon is a polygon with 6 sides, what is the sum of the measures of all its exterior angles? A. 90° B. 180° C. 270° D. 360° 14. If the measure of all exterior angles of a regular pentagon is 72°, then the measure of its interior angles is _____. A. 72° B. 108° C. 36° D. 144° 15. The perimeter of a square is 25cm. Find the measure of its sides. A. 5cm B. 6.25cm C. 6.5cm D. 7cm 16. Which regular polygon has an exterior angle that measures 40°? A. octagon B. nonagon C. decagon D. Dodecagon 17. A polygon having 8 sides has a total of 1080° after adding the measures of all its interior angles. Instead of using the same solution ,what formula can we use in getting the sum of the measures of interior angles of any convex polygon? A. S = 180( n - 2) B. S = n - 2(180) C. S = 180( n-3) D. S = n – 3(180) 18. In finding the measure of each interior angle of a regular polygon, just subtract the measure of its exterior angle from 180°. If a regular polygon has an exterior angle which measures 72°, what is the measure of its interior angles? A. 72° B. 96° C. 108° D. 118° 19. Find the perimeter of a regular octagon if one of its sides measures 4 cm. A. 12cm B. 32cm C. 48cm D. 64cm 20. A rectangle has a perimeter of 46 cm .If the measure of its width is 7 cm , how long is the rectangle ? A. 16cm B. 32cm C. 39 cm D. 53cm