SAT Math· difficulty 3/5
From an external point P, a tangent to a circle touches the circle at point T. If PT = 12 and the distance from P to the center is 13, what is the radius of the circle?
12
1
5
Explanation
The radius tangent at T, forming a right triangle with hypotenuse PO = 13 and leg PT = 12. Radius .
Want 10 more like this — adaptive to your weak spots?
From external point P, a tangent of length 8 and a secant are drawn to a circle. The secant has external segment 4 (from P to the near intersection). What is th…
chevron_rightA square is inscribed in a circle of radius 5. What is the area of the region inside the circle but outside the square?…
chevron_rightA triangle is inscribed in a circle of radius 12. One of its inscribed angles is 30°. What is the arc length of the arc intercepted by this angle?…
chevron_right