Answer:
The length of each side is 26.3 cm
Step-by-step explanation:
Opposite sides of an isoceles triangle are equal
The isoceles triangle is divided into 2 right-angled triangles so the length of one side can be calculated using trigonometric ratio
When the isoceles triangle is divided, the angle in the right-angled triangle is 20° (1/2 of 40°) and the base is 9cm (1/2 of 18 cm), the hypotenuse side is calculated using trigonometric ratio
Let the length of the hypotenuse side be y
9/y = sin 20°
y = 9/0.3420 = 26.3
Length of each side is 26.3 cm
__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)____φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)v__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)__φ(。。)
Answer:9
Step-by-step explanation:3x3= 9
(X3x3x3)
=9p
Answer:
W (3 , 4) or W (3 . -4)
Step-by-step explanation:
W (3 , y), origin (0 ,0)
WO = √(3-0)²+(y-0)² = √9+y²
WO = 5
√9+y² = 5
9+y² = 25
y² = 16
y = ± 4
W (3 , 4) or W (3 . -4)
Hello :
<span>the equation is :
y - 90 = 15(x - 5)</span>