Question
Which cells help in immunity
development?Solution
Helper T cells play a crucial role in the immune system by activating other immune cells, such as cytotoxic T cells and B cells, to mount an immune response. They help recognize foreign pathogens and coordinate the body's defense against infections.
- The base of a right pyramid is an equilateral triangle with side 7 cm. If the height of the pyramid is 32√3 cm, then find the volume of the pyramid.
- Find the height of an equilateral triangle whose side length is 8√3 cm.?
If two triangles PQR and STU are congruent, then which of the following statement(s) is/are true?
I. PQ = ST
II. ∠PQR = ∠STU
A right-angled triangle has an area of 120 m², and the ratio of its base to height is 5:3. The side length of an equilateral tri...
- What is the average of the first eight triangular numbers?
If the angles of a triangle are in the ratio of 2:5:8, then find the value of the biggest angle.
- An equilateral triangle has an altitude of 21√3 cm. Calculate the radius of its incircle.
- In triangle XYZ, UV is drawn parallel to side YZ. If XU = 10 cm, UX = 6 cm, and XV = 15 cm, find XZ.
If two triangles XYZ and ABC are congruent, then which of the following statement(s) is/are true?
I. XY = AB
II. ∠X = ∠A
In ∆ PQR, S is the midpoint of QR. T is the midpoint of line PS. Then, Area of ∆PTQ : Area of ∆ PQR is
