Answered

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find the area of a triangle that has a 10cm side and angle of 105 and another side of 13 cm

Sagot :

maxyjones80

Answer:

62.79cm

Step-by-step explanation:

We are using TRIGONOMETRY. To find the area of a triangle with 2 lengths and a non-right angle, we will use the sine rule.

Area of Triangle = 1/2 * a * b * sin(c)

(Where a & b represent our lengths, and sin(c) represents our angle.)

Area of Triangle = 1/2 * 10 * 13 * sin(105)

Area of the Triangle = 62.79cm

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