5 over 4 multiplied by 12
2 answers:
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Answer:
The correct option is 1.
Step-by-step explanation:
It is given than the area of the triangle ABC is 46cm².
Area of a triangle is
Base of the triangle is AB and height of the triangle is CD.
The area of the triangle is 46cm².
Therefore the length of side AB is 11.5 cm. Option 1 is correct.
Answer:
b ≈ 48.6°
Step-by-step explanation:
Using the sine ratio in the right triangle
sin b = =
, then
b = (
) ≈ 48.6° ( to 1 dec. place )