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seraphim [82]
3 years ago
12

ABCD is a trapezoid. = 1 cm and = 5 cm, and the area = 7.5 cm2. What is the altitude of the trapezoid? 1.5 cm 2.5 cm 3 cm 2 cm

Mathematics
2 answers:
Ludmilka [50]3 years ago
8 0

Answer:

2.5cm

Step-by-step explanation:

area of a trapeziod = 1/2 (a+b)×h

a=1cm

b=5cm

h=?

area= 7.5cm^2

••••• 7.5cm^2=1/2 (6)h

7.5= 3h

then height = 7.5/3= 2.5cm

Alja [10]3 years ago
4 0

Answer:

2.5 cm

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = \frac{1}{2} h(a + b)

where h is the altitude and a, b the parallel bases

Here a = 1, b = 5 and A = 7.5 , thus

\frac{1}{2} h (1 + 5) = 7.5, that is

\frac{1}{2} × 6h = 7.5

3h = 7.5 ( divide both sides by 3 )

h = 2.5 cm ← altitude

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A bird (B) is spotted flying 6,000 feet from a tower (T)). An observer (O) spots the top of the tower (T) at a distance of 9,000
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Answer:

∅ ≈ 56.31°

Step-by-step explanation:

The bird is spotted flying 6000 ft from a tower . The distance of the tower from the bird is 6000 ft. The height of the tower is 9000 ft because the observer spot the distance from the top of the tower at a distance of 9000 ft.

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7 0
3 years ago
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yKpoI14uk [10]

Answer:

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Step-by-step explanation:

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7 0
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Read 2 more answers
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mafiozo [28]
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x=-7/2+1/2y-z
x=-7/2+1/2y-z, y€R, z€R

Warning: I don’t have the € and R

3.-x+2y- -43=5
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x-2y=38

Hope this helps!
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3 years ago
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