PLEASE HELP I WILL GIVE 40+ POINTS IF RIGHT
2 answers:
Answer:
1. <u>Area = ½(a + b) × h</u>
A = ½(9 + 15) × 15
A = ½ × 24 × 15
A = 12 × 15
A = 180mm².
2. <u>Area = 2(l × b) + l × b</u>
A = 2(12 × 4) + 6 × 3
A = 2 × 48 + 18
A = 96 + 18
A = 114m².
Answer:
4b) 180
4c) 114
Step-by-step explanation:
4)
<u>Area of rectangle:</u>
A = bh
A = 15*9
A = 135
<u>Area of triangle:</u>
A = 1/2bh
b = 15 - 9 = 6
A = 1/2(6)(15)
A = 45
<u>Combined:</u>
45 + 135 = 180
5)
<u>1st rectangle:</u>
A = 4*12
A = 48
<u>Middle rectangle:</u>
h = 12 - 9 = 3
A = 6*3
A = 18
<u>Last rectangle:</u>
A = 4*12
A = 48
<u>Combined:</u>
48 + 48 + 18 = 114
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