Sewanhaka High School
Math 8
Class:________________
Name:___________________________
Mrs. Lidowsky, Principal
Mr. Long, Teacher
Date:_____________________
Directions: Answer the following questions. Show work where necessary.
1) 50°
comp:
2) 69°
comp:
3) 25°
comp:
4) <ABD is a right angle. Find the m<ABC and m<CBD.
A
C
x
2x + 30
B
D
For exercises 5 and 6, solve each problem algebraically using an equation:
5) Find the number of degrees in an angle that measures 8° less than its complement.
6) Two angles are complementary. One angle is twice as large as the other. Find the number of degrees
in each angle.
7) The length of a rectangle is three times its width. The perimeter of the rectangle is 24 in. Find the
dimensions of the rectangle.
ANSWER for 7:____ _________________________
8) Find the area of the previous rectangle.
ANSWER for 8:____ ________________
9) Evaluate
2a
5
+ (n – 1)d when a = 40, n = 10, and d = 3.
ANSWER for 9:_____ _______________