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2 years ago

Find the area of this triangle, round to the nearest tenth, I will give brainliest

Mathematics

2 answers:

Setler79 [48]2 years ago

4 0

Answer:

59.15 in^2

Step-by-step explanation:

Using Heron's formula

semiperimeter , s = 1/2 ( 28.8+18+12) = 29.4

Area = sqrt ( 29.4(29.4-28.8)(29.4-18)(29.4-12) ) = 59.15 in^2

den301095 [7]2 years ago

3 0

Answer:

area = 58.8 in.²

Step-by-step explanation:

This is the area of a trianlge when 2 sides and the included angle are known.

Known sides: 12 in., 18 in.

Included angle: 147°

area = (1/2)ab sin C

area = (0.5)(12 in.)(18 in.)(sin 147°)

area = 58.8 in.²

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2 years ago

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3 years ago

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4 years ago

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asambeis [7]

Answer:

Step-by-step explanation:

Number of students 10

Problem 1. $625 for the bus hire per friday, So 625*4=$2500

Problem 2. 2500/25=$100 each for the whole 4 weeks

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3 years ago