Question

I will post more questions but this is the first

Answer 1

20 square inches.

Explanation:

Finding the area of a triangle is relatively easy. Solve like a regular square/rectangle with the equation l*w=a. Plug in the values and you get 5*8=a. 8*5=40. ALTHOUGH with triangles you must half the answer because a triangle is half of a rectangle/square. So you would divide 40 by 2 and you get 20.

Answer 2

20in²

Explanation:

The area of a triangle is calculated using the formula A = bh/2

"A" means area.

"b" is for the base.

"h" is for the height.

It does not matter which is the base and which is the height, as long as they are perpendicular (at 90°) to each other.

5in can be the height.

8in can be the base.

Put the base and height measurements into the formula.

A = bh/2

A = (8in)(5in)/2 Multiply the measurements and the units.

A = (40in²)/2 Divide by 2

A = 20in² Area of the triangle

When you multiply units, in X in becomes in².

"in" has the exponents 1. When you multiply two "in" with exponent 1, you add the exponents. 1 + 2 = 2.

in¹ X in¹ = in¹⁺¹ = in²