Question

If y = 45° and a = 7√2 cm, find the

exact area of the triangle.
a
X
C
y
b

Answer 1

tan y = a/b = 1

(.tan 45° = 1)

a=b

Areas a=1/2 a * b = 1/2 =1/2 * 7√2 * 7√2 cm

b = 7√2 cm

= 49cm²

Explanation: