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Pepsi [2]
3 years ago
14

The angles in a triangle are in the ratio 2:3:4. Find the size of the smallest angle.

Mathematics
1 answer:
mars1129 [50]3 years ago
4 0
Angles in a triangle add up to 180
2:3:4...added = 9

2/9 (180) = 360/9 = 40 <=== smallest angle
3/9 (180) = 540/9 = 60
4/9 (180) = 720/9 = 80
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The diagram shows corresponding lengths in two similar figures. Find the ratio of the perimeters and the ratio of the areas.
GREYUIT [131]

15:20

divide each by 5

3:4

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Choice B

7 0
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blsea [12.9K]
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5.
irina [24]

Answer:

160 m²

384 m²

Step-by-step explanation:

The area of a trapezium is given by :

A = 1/2(a + b)h

h = height ; a and b = lengths

From the diagram :

A = 1/2(12 + 20)10

A = 1/2(32)10

A = 16 * 10

A = 160 m²

2.)

Area of parallelogram = base * height

Base = 24 ; h = 16

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A = 384 m²

7 0
2 years ago
The area of a rectangle is 60 square inches.
xz_007 [3.2K]
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