Please answer and explain... will mark brainliest!!

find the area.

12. 1144.8668 (round if needed) 13. 52.5

Step-by-step explanation:

Area of a triangle: x x

Area of a rectangle: x

area base height width

12. Inside of the rectangle are two triangles. Use the pythagorean theorem to find the height of the triangles.

Substitute for and for

Square the numbers

Subtract from each side

Take the square root from each side

is the measurement of the height

Use the formula to find the area of the rectangle

x

Substitute for and for h

x

Solve

Round if needed

13. This is an irregular polygon. Separate the the shape into regular polygons. A triangle and a rectangle.

Use the formula to find the area of the triangle.

x x

Substitute for and for

x x

Solve

Use the formula to find the area of the rectangle.

x

Substitute for and for

x

Solve

Add the two areas together to get the total area of the irregular polygon

Solve

d

step-by-step explanation:

d

answer: sorry i dont really know but can we talk all my friends r gone and im bored

step-by-step explanation: