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2 years ago

TRIG. HELP GIVE BRAINLEST AND EARN POINTS

Mathematics

1 answer:

cricket20 [7]2 years ago

5 0

Answer:

c ≈ 4.2 ft

Step-by-step explanation:

Using the cosine rule with a = 7, b = 8 and C = 32°, then

c² = 7² + 8² - (2 × 7 × 8 × cos32°)

= 49 + 64 - (112 × cos32°)

= 113 - 94.98

c = $\sqrt{113-94.98}$ ≈ 4.2 ft ( to the nearest tenth )

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2 years ago

Felicia places a rectangular rug that measures 10 feet by 11 feet in a triangular room with a base of 30 feet and height of 22 f

arsen [322]

Answer:

1. Area of rectangular rug is $110 ft^{2}$

2. Area of triangular room is $330ft^{2}$

Step-by-step explanation:

This problem bothers on the mensuration of flat shapes, rectangle and triangle.

step one

let us start by solving for the area of the rectangular rug

given data

Area A = ?

Length l = 11 ft

Width w= 10 ft

we know that the area of a rectangle is expressed as

$Area=Length * Width$

substituting our given data we have

$Area= 11*10\\Area= 110 ft^{2}$

step two

let us solve for the area of the triangular room

given data

Area A = ?

base b = 30 ft

height h= 22 ft

we know that the area of a triangle is expressed as

$Area= \frac{1}{2} *base* height\\$

substituting our given data we have

$Area= \frac{1}{2} * 30* 22\\Area=\frac{660}{2} \\Area= 330 ft^{2}$

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2 years ago

TRIG. HELP GIVE BRAINLEST AND EARN POINTS​

TRIG. HELP GIVE BRAINLEST AND EARN POINTS