9 in. 13 in.
10 in
Drawing not to scale
b. 90 in?
45 in?
d. 292.5 in.
c. 32 in?
a.

a, a, d

Step-by-step explanation:

44

The area (A) of a triangle is calculated as

A = bh ( b is the base and h the perpendicular height )

Here b = 10 and h = 9 , then

A = × 10 × 9 = 5 × 9 = 45 in² → a

45

The area (A) of a parallelogram is

A = bh ( b is the base and h the perpendicular height )

Here b = 2 and h = 4 , then

A = 2 × 4 = 8 m² → a

46

A = bh ( with b = 4 and h = 10 )

A = 4 × 10 = 40 m² → d

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step-by-step explanation: