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WILL GIVE 30 POINTS TO WHOEVER SOLVES THIS

WILL GIVE 30 POINTS TO WHOEVER SOLVES THIS-example-1
User Leopd
by
4.5k points

2 Answers

2 votes

151 meters² is the correct answer!

First, find the area of the rectangle:

10 x 9 = 90

Second, find the area of the triangle:

9 x 18 = 162

162 ÷ 2 = 81

Third, find the area of the triangle "inside" of the rectangle and subtract it from the bigger triangle:

9 - 5 = 4

4 x 10 = 40

40 ÷ 2 = 20

Then it all comes together:

90 + (81 - 20) = 151

(BTW, it's actually 15 points because 30 points gets split between two people.)

User Alessioalex
by
4.7k points
5 votes

Answer:

142 square meters

Explanation:

Big rectangle Area = LxW = 18 x9= 162

White triangle Area A = (ab)/2 legs 5 and 8 ( 18-10= 8 )

= (5x8)/ 2 = 20

Subtract white triangle from green rectangle

162-20 = 142

OR

area left rectangle LxW 10x9 = 90

area right rectangle LxW 4x8 =32

area green triangle ( sides 5 an8 ) (ab)/2 = 20

90+32+20 = 142

User Gui
by
4.3k points