Find the area of this composite figure?
145yds2
A trapezoid has an area of 108mm2 and bases of 9in and 3in, what is the missing height of this trapezoid
18in
A triangle has a base of 12cm and a height of 6 cm. If the dimensions of the triangle are doubled how much bigger will the area get?
The area will be four times as big from the original.
Erica is planting a triangular garden this spring. the coordinates of her garden are (0,0) (12,0) (6,6). What is the area of the triangular garden?
36 units2
What is the area of a parallelogram that has a height of 6in. and a base of 17 in.?
102in2
What is the area of the figure below?
91in2
The base of a triangle is 4ft and the area of the entire triangle is 25ft2, what is the missing height?
12.5ft
A classroom in 6th grade and in 3rd grade have two different sizes of desk. The desk in 3rd grade are 1/2 the dimensions of the 6th grade desk. If the perimeter of the 6th grade desk is 101in what is the perimeter of the third grade desk?
50.5in
Reginald wants to place a retaining wall around his yard. The coordinates of the yard are (2,2) (2,6) (6,6) and (6,2). If each grid square represents 12ft how much retaining wall will Reginald need to go all the way AROUND his yard?
192ft.
What is the area of a triangle with a height of 2cm and a base of 4cm?
4cm2
Find the area of this polygon.
66mm2
A parallelogram has a base of 7in and an area of 63in2, what is the missing height of the parallelogram?
9in
A trapezoid has a perimeter of 110mm. If the dimensions of the trapezoid triple, what effect will it have on the perimeter?
The perimeter will also get three times as big. Giving you a new perimeter of 110mm.
A rectangle has vertices of A(2,5) B(2,12) C(6,5) D(6,12). What is the base and height of the rectangle?
Base=4units
Height=7units
A triangle and parallelogram have the same height and base will they have the same area? True or False
False.
54cm2
The height of a triangle is 12yds and the area of the triangle is 143.8yds2 what is the missing base? Round to the nearest tenth.
24.0 yds
Our trophy case downstairs has an area of 32 ft2 suppose our dimensions were doubled because we had won so many awards. What would be the new area of our trophy case?
128ft2
Kane would like to create a scrapbook page from his trip to Mars, the vertices of his scrapbook page are (12,1) (4,1) (12,8) and (4,8). What is the area of the page he will be covering if each grid square is 3 sq. inches?
168 sq. inches
A trapezoid has a bases of 9.25ft and 22.4ft with a height of 8.4ft. What is the area of this trapezoid? Round to the nearest tenth.
132.9ft2
84in2
A trapezoid has a height of 5ft and an area of 100ft2 what are the missing two bases?
Acceptable answers: 25ft and 15ft, 30ft and 10ft, etc.
A triangular t-shirt logo has dimensions 1/4 of the actual logo. If the logo is 12in, 8in, and 16in what is the perimeter of the drawing?
9in.
The Riverside pool has vertices of (0,2) (0,5) (2,5) (2,6) (5,6) (5,1) (2,1) and (2,2) If each grid square represents 9 square feet, what is the area of the pool?
189ft2
Name all three formulas for finding area of trapezoids, triangles, and parallelograms.
A=bh Parallelogram
A=bh/2 Triangle
A=h(b1 + b2)/2 Trapezoid