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2 years ago

Please help answer and explanation im very confused.

Mathematics

1 answer:

Veseljchak [2.6K]2 years ago

6 0

Answer:

1) 18m²

2) 25cm²

Step-by-step explanation:

a = ½ × b × h
a = ½ × 9 × 4
a = ½ × 36
a = 18m²

a = ½ × b × h
a = ½ × 10 × 5
a = 5 × 5
a = 25 cm²

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3 years ago

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3 years ago

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3 years ago

A rectangular prism has a length of 4.2 cm, a width of 5.8 cm, and a height of 9.6 cm. A similar prism has a length of 14.7 cm,

grigory [225]

Answer: 3.5

Step-by-step explanation:

Given: Dimensions of larger prism = length of 4.2 cm, a width of 5.8 cm, and a height of 9.6 cm.

Dimensions of smaller prism = length of 14.7 cm, a width of 20.3 cm, and a height of 33.6 cm.

Scale factor = $\dfrac{\text{Size of image}}{\text{Size of original figure}}$

Since, smaller figure is the original figure and the bigger one is the image.

So, scale factor = $\dfrac{14.7}{4.2}=3.5$ [Taking lengths

Hence, the factor to produce the corresponding dimensions of the larger prism = 3.5

5 0

3 years ago

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Use the Pythagorean theorem to find the third side of the triangle.

ziro4ka [17]

Answer:

9.2 (1DP)

Step-by-step explanation:

First you do 10^2 which is 10 X 10 = 100
Then you do 4^2 which is 4 X 4 = 16
Then you do 100 - 16. The way Ive learnt it is that if the hypotenuse isn't the one you have to find then minus of it it is then plus. So 100 - 16 = 84
A^2 + B^2 = C^2 84 is C^2 meaning now you have to square root it
Square root of 84 is 9.2 to 1 DP

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3 years ago

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