Question

Construct a right angle ABC with help of protractor mark a point D in interior of angle ABC draw ray BD and verify by measurement that angle ABD and angle DBC are complementary

Answer 1

right angle ΔABC is constructed and verified ∠ABD   & ∠DBC are complementary

Step-by-step explanation:

Step 1 : Draw a line segment BC using ruler

Step  2 : Draw an angle of 90 deg at B on BC using protector

Step 3 : Mark a point A on angle drawn in step 2

Step 4 : join AC

a right angle ABC triangle is constructed

Step 5 : Take any point D inside ABC

Step 6 : join BD

Step 7 : Measure ∠ABD   & ∠DBC

Add m(∠ABD) + m(∠DBC)     and = 90°

Hence ∠ABD   & ∠DBC are complementary

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