# Ratio + arctangent - math problems

#### Number of problems found: 6

• Ratio iso triangle
The ratio of the sides of an isosceles triangle is 7:6:7 Find the base angle to the nearest answer correct to 3 significant figure.
Average climb of the road is given by ratio 1:15. By what angle road average climb?
• Bevel
I have bevel in the ratio 1:6. What is the angle and how do I calculate it?
• Sphere in cone
A sphere is inscribed in the cone (the intersection of their boundaries consists of a circle and one point). The ratio of the surface of the ball and the contents of the base is 4: 3. A plane passing through the axis of a cone cuts the cone in an isoscele
• Stairway
What angle rising stairway if step height in 20 cm and width 26 cm?
• Sun rays
If the sun's rays are at an angle 60° then famous Great Pyramid of Egypt (which is now high 137.3 meters) has 79.3 m long shadow. Calculate current height of neighboring chefren pyramid whose shadow is measured at the same time 78.8 m and the current heig

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