Advertisements
Advertisements
Question
Find the unknown marked angles in the given figure:
Advertisements
Solution
In the figure,
∠A + ∠B + ∠C = 180° .....(Sum of angles of a triangle)
b° + 50° + b° = 180°
⇒ 2b° + 50° = 180°
⇒ 2b° = 180° − 50° = 130°
⇒ b° = `(130°)/2=65°`
Hence ∠A = b° = 65°
and ∠C = b° = 65°
APPEARS IN
RELATED QUESTIONS
The angles of a triangle are (x − 40)°, (x − 20)° and `(1/2x-10)^@.` find the value of x
Can a triangle have All angles equal to 60°? Justify your answer in case.
The exterior angles, obtained on producing the base of a triangle both way are 104° and 136°. Find all the angles of the triangle.
Is the following statement true and false :
All the angles of a triangle can be greater than 60°.
The bisects of exterior angle at B and C of ΔABC meet at O. If ∠A = x°, then ∠BOC =
Classify the following triangle according to sides:
Classify the following triangle according to sides:
The length of the three segments is given for constructing a triangle. Say whether a triangle with these sides can be drawn. Give the reason for your answer.
15 cm, 20 cm, 25 cm
Jincy used these shapes to make drawings of fish.
Now you also use some shapes to draw the different sea animals shown below.
Sea urchin
Lobster
Eel
Red snapper
Octopus
Clam
Parrotfish
Prawn
Cuttlefish
Jellyfish
Squid
Silver pomfret
Crab
The sides of a triangle must always be connected so that:
