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avanturin [10]
3 years ago
13

9 cm, 5 cm and 3 cm a congruent triangle

Mathematics
1 answer:
Aleksandr [31]3 years ago
5 0

Answer:

9cm x 5cm x 3cm =  135 = 67,5cm 2

               2                     2

Step-by-step explanation:

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Find the area of the figure.
Naddika [18.5K]

Answer:

55 sq meters

Step-by-step explanation:

Area of big triangle 7x5=35/2

but there's two big triangle so 35/2 x 2 =35

area of small triangle 5x4=20/2 10

10 x 2 =20. And then combine 20+35=55

So the area is 55 sq meters.

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3 years ago
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WITCHER [35]
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8 0
3 years ago
10 POINTS!! HELP ASAP!! What is the length of AC?
My name is Ann [436]

Answer:

D

Step-by-step explanation:

Δ CED and Δ CAB are similar thus the ratios of corresponding sides are equal, that is

\frac{CE}{CA} = \frac{ED}{AB} , substitute values

\frac{x}{156-x} = \frac{7}{84} = \frac{1}{12} ( cross- multiply )

12x = 156 - x ( add x to both sides )

13x = 156 ( divide both sides by 13 )

x = 12

Thus

AC = 156 - x = 156 - 12 = 144 → D

4 0
3 years ago
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ОО
sattari [20]
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PLEASE HELP ME!!!!!!!
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