230 likes | 317 Views
Warm up Use Pythagorean Theorem to find the missing side. Round to the nearest tenths. 8.2 yd. Welcome back. 8.3 m. 2.2 ft. TANGENTS. A line is tangent to the circle only if it is perpendicular to the radius drawn to the point of tangency. Is AD tangent or not tangent?.
E N D
Warm up Use Pythagorean Theorem to find the missing side. Round to the nearest tenths. 8.2 yd Welcome back. 8.3 m 2.2 ft
TANGENTS A line is tangent to the circle only if it is perpendicular to the radius drawn to the point of tangency
Is AD tangent or not tangent? No, point D is not tangent to the circle.
Is AB tangent or not tangent?Use Pythagorean Theorem to find out. Yes 682 + 512 = 852
Is AB tangent or not tangent?Use Pythagorean Theorem to find out. No 82 + 162 192
Solve for x. x2 + 962 = 1002 x = 28 BC is a radius of Circle C AB is tangent to Circle C
Solve for x. x2 + 482 = 802 x = 64 BC is a radius of Circle C AB is tangent to Circle C
Solve for x. x2 + 322 = (x + 16)2 32x = 768 x = 24 BC is a radius of Circle C AB is tangent to Circle C
Solve for x. x2 + 562 = (x + 32)2 64x = 2112 x = 33 BC is a radius of Circle C AB is tangent to Circle C
Solve for x. x2 + 992 = (x + 81)2 162x = 3240 x = 20 BC is a radius of Circle C AB is tangent to Circle C
Solve for x. 7.1 x 6
EF EG
S Party hat problems! If two segments from the same exterior point are tangent to a circle, then they are congruent. R T
Solve for x C P
Find NP N T S P R Q
Homework ?