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Pepsi [2]
3 years ago
7

Find the area (PLEASE HELP DUE SOON!!! thanks xo)

Mathematics
2 answers:
patriot [66]3 years ago
6 0

Answer:

The total area of the rocket is = 44

Step-by-step explanation:

a) shape 1 is a triangle

Base = 3 and height = 4

A = 1/2bh

A = 1/2 × 3 × 4

A = 3 × 2 = 6

b) shape 2 is a rectangle

Length = 10 and width = 3

A = l × w

A = 10 × 3

A = 30

c) shape 3 is a trapezium

a = 3, b = 5, h = 2

A = 1/2(a + b)h

A = 1/2(3 + 5) 2

A = 1/2 (8) 2

A = 8

d) total area of the rocket = Area of shape 1 + area of shape 2 + area of shape 3

Total area = 6 + 30 + 8

= 44

shtirl [24]3 years ago
5 0

Area of shape 1 = 6 sq unit

Area of shape 2 = 30 sq unit

Area of shape 3 = 8 sq unit

Area of rocket = 44 sq unit

Step-by-step explanation:

The rocket consists if 3 shapes : triangle, rectangle and trapezium

Area of the triangle  = \frac{1}{2} X 3 X 4 = 6 sq unit [ base = 3 and height = 4]

Area of the rectangle = 10 X 3 = 30 sq unit [ length = 10 and width = 3]

Area of the trapezium = \frac{1}{2} X ( a+b) x h [ a= 3 b= 5 and h= 2]

= \frac{1}{2} X 8 X 2 = 8 sq unit

Hence, area of the square = 6 + 30 + 8 = 44 sq unit

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Remark

If the lines are parallel then triangle RQS will be similar to triangle RTP


From that, all three lines in one triangle will bear the same ratio to all three lines of the second triangle.


Givens

PQ = 8

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RS = 15

ST = x + 3


Ratio

QR/RP = RS/RT


Sub and solve

RP = 5 + 8

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RT = 15 + x + 3

RT = 18 + x


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<h3>Answer: Choice D</h3><h3>m = n</h3><h3>b = sqrt(pi)*a</h3>

=====================================================

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