NatalieZepeda
27.05.2021 •
Mathematics
HELICOTEST (TAREA): 2° - TRIGONOMETRÍA - CAPÍTULO 7 - RAZONES TRIGONOMÉTRICAS DE ÁNGULOS NOTABLES II (30°; 45° Y 60°) sacooo .V
Solved
Show answers
More tips
Answers on questions: Mathematics
- M Mathematics **Answer When You Can** -Evaluate Function Expressions- 3.f(-4)-3.g(-2)=...
- M Mathematics Easy area problem Need fast...
- M Mathematics Select the correct answer from each drop-down menu. A group of doctors are conducting an experiment to test a new nutritional supplement. They randomly selected 600...
- M Mathematics Asquare picture has an area of 64 square inches. joey had a box the shape of a cube that a volume of 729 cubic inches. will the frame fit on the bottom of the box...
- M Mathematics Q) Find the missing angle inside the quadrilaterals please do it like this Example : 1) sum of angle quadrilateral = 360° sum of given angles in a quadrilateral =...
- M Mathematics Gail is learning how to bake cookies. she found that 2 out of every 9 cookies are burnt. if gail baked 216 cookies, how many burnt cookies would she expect to get?...
- M Mathematics How do you solve y=3x+5...
Ответ:
Answer : The radius of circle C is 7 cm.
Explanation:
As we shown in the figure below:
Let the radius of circle C is x
Let the radius of circle A is 2x
Let the radius of circle of B is 4x
So The length of side AC of ΔABC is x+2x = 3x
The length of side BC of ΔABC is 4x+x = 5x
The length of side AB of ΔABC is 4x+2x = 6x
Since we have given that the perimeter of triangle ΔABC is 98 cm.
and we know that the perimeter means the sum of boundary of sides of triangle .
so, Perimeter = 6x+5x+3x = 98 cm
⇒ 14x= 98
⇒ x=
⇒ x=7
So, the radius of circle C is 7 cm.