Solve the triangle.
1) b = 71°, b = 15, c = 8

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.

Ahousekeeper mixed 5 gallons of blue paint with every 9 gallon of yellow paint in order to make a green paint which ratio of gallon of blue paint to gallon of yellow paint will make the same shade of green paint