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ludwig457

  • 3 years ago

A triangle has an area of 26 in2, and two of the sides of the triangle have lengths 8 in. and 7 in. Find the angle included by these two sides. (Assume the angle is acute. Round your answer to one decimal place.) ...working...

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  1. ludwig457
    • 3 years ago
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    26=1/2(8)(7)sin(theta) sin(theta)=(2*26)/(8*7)=52/56 theta= ??? after 52/56 how do i find what theta is? what do i do with sin?

  2. cwrw238
    • 3 years ago
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    sin theta = 52/56 (not theta) use your calculator to find theta [ the required key on your calculator will be sin-1 or arcsin]

  3. ludwig457
    • 3 years ago
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    asin(52/56)?

  4. ludwig457
    • 3 years ago
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    sweet thanks, 68.2 degrees

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