Advertisements
Advertisements
प्रश्न
Find the value of x in the given triangle
Advertisements
उत्तर
In ∆ABC, given B = 3x – 8°
∠XAZ = ∠BAC ...[∵ vertically opposite angles]
8x + 7 + ∠BAC
i.e., In ∆ABC, ∠A = 8x + 7
Exterior angle ∠XCY = 120°
Exterior angle is equal to the sum of the interior opposite angles
∠A + ∠B = 120°
8x + 7 + 3x – 8 = 120°
8x + 3x = 120° + 8 – 7
11x = 121°
x = `(121^circ)/11`
x = 11°
APPEARS IN
संबंधित प्रश्न
Find the value of the unknown exterior angle x in the following diagram:
Find the value of the unknown exterior angle x in the following diagram:
Find the value of the unknown exterior angle x in the following diagram:
Find the value of the unknown interior angle x in the following figure.
∠ACD is an exterior angle of ∆ABC. The measures of ∠A and ∠B are equal. If m∠ACD = 140°, find the measures of the angles ∠A and ∠B.
Find the value of ‘x’ in the given figure
If the exterior angle of a triangle is 130° and its interior opposite angles are equal, then measure of each interior opposite angle is ______.
In the given figure, ∠PRS = ∠ ______ + ∠ _______
Find the measure of ∠A in the following figure.
In the following figure, if RP = RQ, find the value of x.
