Answer:
a. 8.7cm
b. 43.5cm squared
Step-by-step explanation:
a. draw the triangle with a side length of 10cm, and measure the height which is 8.7cm.
b. formula to find the area of a triangle: (base into height) divided by 2 ((b x h) / 2)
the base is 10
the height is 8.7
(10 x 8.7)/2 = 87/2 = 43.5 cm squared
sinB=p/h
sin45=8/y
1/√2=8/y
y=8√2in
