Area of Triangles and Parallelograms Assignment 100%

Find the area of the triangle QRS. Area = ___ square units

140

Find the area of the triangle DEF. Area = ___ square units

144

Each unit on the coordinate grid represents1 yard. The rectangular pool and triangular hot tub shown are both in need of covers. How much total material is needed to cover both? __ square yards

29

A rectangular table is positioned in a 10-foot by 10-foot room as shown. How long is the longer edge of the table? Square root of __ feet What is the area of the tabletop? __ square feet

40 then 20

One of the altitudes of the parallelogram shown is √22.5 units. What is the length of the other altitude?

6 units

Complete the following steps to calculate the altitude of the parallelogram using area methods. The area of the sheet of paper is __ square inches. The combined area of the triangle cutouts is __ square inches. The area of the parallelogram is __ square inches. The altitude of the parallelogram rounded to two decimals is ____ square inches.

96 36 60 6.51

Which statement is true of the right triangles ABC and DEF?

Area of ABC is greater than area of DEF.

A parallelogram has coordinates of (5, 17), (10, 20), (18, 9), and (13, 6). Which right triangle represents one of the cutouts from the box method?

C

Which figure best demonstrates the setup for the box method of finding the area of a triangle?

C