Answer:
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Step-by-step explanation:
Answer:
10.5 in. ²
Step-by-step explanation:
a = (b × h) ÷ 2
a = (7 × 3) ÷ 2
a = 21 ÷ 2
a = 10.5
Answer:

Step-by-step explanation:
The figure shows a right triangle.
To calculate the measure of the angle A, you can use the inverse trigonometric function arctangent:

Identify the angle
, the opposite side and the adjacent side:

Substitute into
.
The measure of the angle A is:

Rounded to the nerarest hundreth:
