HW 2.2—Area of a Triangle
Find the area of each triangle.
1.
2.
3.
4.
A = 47o b = 32 ft. c = 19 ft
B = 101o a = 10 cm c = 22 cm
a=5 b=9 c=8
a=3 b=5 c=8
5. Find the area of a regular nonagon (9 sides) inscribed in a circle of radius 10 inches.
6. A surveyor needs to calculate the area of an unusually shaped plot of land. Using a
measuring tool called a transit, he can stand at point A and record all the distances and
angle measures from this single vertex.
a) Use these measurements to compute
the area of the hexagon AEFGHK.
b) If one acre equals 43,560 ft2, how
many acres are covered by this plot of
land?
HW 2.2—Area of a Triangle
Find the area of each triangle.
1.
2.
3.
4.
A = 47o b = 32 ft. c = 19 ft
B = 101o a = 10 cm c = 22 cm
a=5 b=9 c=8
a=3 b=5 c=8
5. Find the area of a regular nonagon (9 sides) inscribed in a circle of radius 10 inches.
6. A surveyor needs to calculate the area of an unusually shaped plot of land. Using a
measuring tool called a transit, he can stand at point A and record all the distances and
angle measures from this single vertex.
a) Use these measurements to compute
the area of the hexagon AEFGHK.
b) If one acre equals 43,560 ft2, how
many acres are covered by this plot of
land?