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2 years ago

Please answer the area please

Mathematics

1 answer:

Nata [24]2 years ago

4 0

The area of a trapezoid is:

$A = \frac{a + b}{2} h$

A = area

a = base 1

b = base 2

h = height

Area = unknown

base 1 = 2.5

base 2 = 7.5

height = 2.5

^^^Plug these numbers into the formula!

$A = (\frac{2.5 + 7.5}{2} )(2.5)$

A = (10/2)(2.5)

A = (5)(2.5)

A = 12.5

Hope this helped!

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3 years ago

They have a rectangle ABCD as shown below, where AB = 24cm BC = 10cm and AE = 13cm

alex41 [277]

Answer:

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B. 60 cm

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D. 50 cm

Step-by-step explanation:

Given: AB = 24cm BC = 10cm and AE = 13cm.

A. Since a rectangle is a 2 dimensional figure, it has no volume but area.

So that,

the area of the rectangle ABCD = length x width

= 24 x 10

= 240 $cm^{2}$

B. To calculate the circumference of the BCD triangle, apply the Pythagoras theorem to determine BD.

$BD^{2}$ = $BC^{2}$ + $DC^{2}$

= $10^{2}$ + $24^{2}$

= 676

BD = $\sqrt{676}$

= 26

BD = 26 cm

so that,

the circumference of BCD = 10 + 24 + 26

= 60 cm

C. To calculate the circumference of the BEC triangle,

AC = 26 cm, AE = 13 cm

CE = 26 - 13

= 13 cm

CE = 13 cm

The circumference of the BEC triangle = 13 + 13 + 10

= 36 cm

D. The circumference of the DEC triangle = 13 + 13 + 24

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Answer:

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Dafna11 [192]

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2 years ago

Read 2 more answers