हिंदी

Which of the Following Statements Are True (T) and Which Are False (F): the Measure of Each Angle of an Equilateral Triangle is 60°

Advertisements
Advertisements

प्रश्न

Which of the following statements are true (T) and which are false (F): 

The measure of each angle of an equilateral triangle is 60° 

 

Advertisements

उत्तर

True (T)
Reason: Since all the three angles of an equilateral triangles are equal and sum of
the three angles is 180°, each angle will be equal to
`180°/3⇒ 60`  


shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 12: Congruent Triangles - Exercise 12.5 [पृष्ठ ६२]

APPEARS IN

आर.डी. शर्मा Mathematics [English] Class 9
अध्याय 12 Congruent Triangles
Exercise 12.5 | Q 5.3 | पृष्ठ ६२

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

ΔABC is an isosceles triangle in which AB = AC. Side BA is produced to D such that AD = AB (see the given figure). Show that ∠BCD is a right angle.


Show that the angles of an equilateral triangle are 60° each.


Determine the measure of each of the equal angles of a right-angled isosceles triangle.


In Fig. 10.40, it is given that RT = TS, ∠1 = 2∠2 and ∠4 = 2∠3. Prove that ΔRBT ≅ ΔSAT 

  


In a ΔABC, if AB = AC and ∠B = 70°, find ∠A. 


Find the measure of each exterior angle of an equilateral triangle. 

 


ABC is a triangle in which ∠B = 2 ∠C. D is a point on BC such that AD bisects ∠BAC and AB = CD.
Prove that ∠BAC = 72°. 


Fill the blank in the following so that the following statement is true. 

Sides opposite to equal angles of a triangle are ...... 


Fill the blank in the following so that the following statement is true. 

Angle opposite to equal sides of a triangle are ..... 


Fill the blank in the following so that the following statement is true. 

In right triangles ABC and DEF, if hypotenuse AB = EF and side AC = DE, then ΔABC ≅ Δ ……


Which of the following statements are true (T) and which are false (F)?  

Of all the line segments that can be drawn from a point to a line not containing it, the perpendicular line segment is the shortest one. 


Fill in the blank to make the following statement true. 

If two angles of a triangle are unequal, then the smaller angle has the........ side opposite to it. 


If the angles A, B and C of ΔABC satisfy the relation B − A = C − B, then find the measure of ∠B.


In the given figure, x + y =


In the given figure, the value of x is ______.


The side BC of ΔABC is produced to a point D. The bisector of ∠A meets side BC in L. If ∠ABC = 30° and ∠ACD = 115°, then ∠ALC = ______.


In the given figure, if l1 || l2, the value of x is


CDE is an equilateral triangle formed on a side CD of a square ABCD (Figure). Show that ∆ADE ≅ ∆BCE.


Find all the angles of an equilateral triangle.


In a triangle ABC, D is the mid-point of side AC such that BD = `1/2` AC. Show that ∠ABC is a right angle.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×